package com.neutech.core;

import java.util.HashMap;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class TeachUtil {
    private static Map<String, String> initCityMap() {
        Map<String, String> cityMap = new HashMap();
        cityMap.put("11", "北京");
        cityMap.put("12", "天津");
        cityMap.put("13", "河北");
        cityMap.put("14", "山西");
        cityMap.put("15", "内蒙古");
        cityMap.put("21", "辽宁");
        cityMap.put("22", "吉林");
        cityMap.put("23", "黑龙江");
        cityMap.put("31", "上海");
        cityMap.put("32", "江苏");
        cityMap.put("33", "浙江");
        cityMap.put("34", "安徽");
        cityMap.put("35", "福建");
        cityMap.put("36", "江西");
        cityMap.put("37", "山东");
        cityMap.put("41", "河南");
        cityMap.put("42", "湖北");
        cityMap.put("43", "湖南");
        cityMap.put("44", "广东");
        cityMap.put("45", "广西");
        cityMap.put("46", "海南");
        cityMap.put("50", "重庆");
        cityMap.put("51", "四川");
        cityMap.put("52", "贵州");
        cityMap.put("53", "云南");
        cityMap.put("54", "西藏");
        cityMap.put("61", "陕西");
        cityMap.put("62", "甘肃");
        cityMap.put("63", "青海");
        cityMap.put("64", "宁夏");
        cityMap.put("65", "新疆");
        return cityMap;
    }

    public static boolean is18ByteIdCardComplex(String idCard) {
        Pattern pattern1 = Pattern.compile("^(\\d{6})(19|20)(\\d{2})(1[0-2]|0[1-9])(0[1-9]|[1-2][0-9]|3[0-1])(\\d{3})(\\d|X|x)?$");
        Matcher matcher = pattern1.matcher(idCard);
        int[] prefix = new int[]{7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2};
        int[] suffix = new int[]{1, 0, 10, 9, 8, 7, 6, 5, 4, 3, 2};
        if (!matcher.matches()) {
            return false;
        } else {
            Map<String, String> cityMap = initCityMap();
            if (cityMap.get(idCard.substring(0, 2)) == null) {
                return false;
            } else {
                int idCardWiSum = 0;

                int idCardMod;
                for (idCardMod = 0; idCardMod < 17; ++idCardMod) {
                    idCardWiSum += Integer.valueOf(idCard.substring(idCardMod, idCardMod + 1)) * prefix[idCardMod];
                }

                idCardMod = idCardWiSum % 11;
                String idCardLast = idCard.substring(17);
                if (idCardMod == 2) {
                    return idCardLast.equalsIgnoreCase("x");
                } else {
                    return idCardLast.equals(suffix[idCardMod] + "");
                }
            }
        }
    }
}
